Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Mono- and bisquaternary ammonium derivatives of 2.beta.,16.beta.-di-amino-5.alpha.-androstane derivatives and pharmaceutical preparations containing same

Mono- and bisquaternary ammonium derivatives of 2.beta.,16.beta.-di-amino-5.alpha.-androstane derivatives and pharmaceutical preparations containing same

US Patent 4447425 · Granted May 8, 1984

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Benzylamine derivatives which are useful in treating psychiatric disorders2001
Benzylamine derivatives which are useful in treating psychiatric disorders2000
Monoquaternary 2,16-bispiperidinylandrostane derivatives1995
Monoquaternary 2,16-bispiperidinylandrostane derivatives1995
Novel 2.beta.-morpholino-androstane derivatives1990
Novel 2.beta.-morpholino-androstane derivatives1990
Novel 2.beta.-morpholino-androstane derivatives1990
Novel 2.beta.,16.beta.-diamino-androstanes1990
Novel 2.beta.,16.beta.-diamino-androstanes1990
Biologically active tricyclic compounds and pharmaceutical compositions containi1989
Biologically active tricyclic compounds and pharmaceutical compositions containi1989
Anti-arrhythmic amino-alcohols1986